Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Duplicate email addresses in mailing list after merging 2 lists in Address Book

  • 1 cavab
  • 1 has this problem
  • 2 views
  • Last reply by Henrik R.

more options

I assumed that Thunderbird Address Book was able to merge 2 mailing lists (from 2 'address books') and NOT copy the duplicate addresses. But I was wrong. Why does TB think that I want to have a mailing list with 2 or 3 copies of the same email address?

I assumed that Thunderbird Address Book was able to merge 2 mailing lists (from 2 'address books') and NOT copy the duplicate addresses. But I was wrong. Why does TB think that I want to have a mailing list with 2 or 3 copies of the same email address?

Chosen solution

OK. Most of the duplicates disappeared like this: I copied all addresses from the new imported Address Book into a new mailing list in the Personal Address Book. Then I created a new mailing list in the Personal Address Book and copied 8 other mailing lists from the same Address Book into it. That removed almost all duplicates, but not those that had different 'Display Name's.

Read this answer in context 👍 0

All Replies (1)

more options

Seçilmiş Həll

OK. Most of the duplicates disappeared like this: I copied all addresses from the new imported Address Book into a new mailing list in the Personal Address Book. Then I created a new mailing list in the Personal Address Book and copied 8 other mailing lists from the same Address Book into it. That removed almost all duplicates, but not those that had different 'Display Name's.